Amazon launches Lumberyard, a free game engine that will support Linux and have source access
Amazon dropped a bit of a big one recently, they announced Lumberyard which will be a mix of code from CryEngine, Double Helix and you can get source code access with it too.
How to setup OpenMW for modern Morrowind on Linux / SteamOS and Steam Deck
How to install Hollow Knight: Silksong mods on Linux, SteamOS and Steam Deck